Sewing-machine lubricator.



No. 772,502. PATENTED 00T. 18, 1904.

W. P. DIAL a G. H. DIMOND. SEWING MACHINE LUBRIC ATUR.

APPLUJATION YILED MAY 28, 1903.

2 SHEETS-SHEET 1.

NM i@ 41g/ vAmm N0 MODEL.

W/ TN ESSE S PHBNTED @3C-m18, 1904. vf. F. DIAL L e. ef. Dumm. SEWING Mmmm JBMcAToa.

APPLCATIOH FILED HAY 28, 1903. Y

2 SHEETS-SHEET 2.

No nom..

INVENTOHS. f @Wag ma w/TNESSE ma f ATTORNEY i i i i i l i '3 Patented October 18, 1904.

UNITED STATES PATENT OFFICE.

HLBUR F. 'DIAL AND GEORGE Il. DHIONI). OF BRIDG'IOR'I, CONNECTI- SEWING-MACHINE LUBRICATOR.

SPECIFICATIQN forming part of v1'..ett;ers Patent No. 772,502, dated October 18, 1904.

l Application filed May 28, 1903, Serial No. 159,165. No model Be it known that we, VVILnUu F. DIAL and Gnonor. li. l'woxn. citizens of the United States, residing at Bridgeport, inthe county of Fairlield and State of Connecticut, have invented a certain new and useful Improvement in Sewing-Machine Lubricators. ot' which the following is a full, clear, and exact description.

The object of this invention is to provide means for lubricating portions of the upperstitch-t'orming mechanism ot' a sewing-machine.

The inventionconsists of a stationary reservoir located in the ovcrhanging arm, combined with oil-distrilnlt-ers and ducts to couvcy the lubricant from such reservoir to said parts.

In operating high-speed sewing-machines an exceptional nicety of fitting is required, and it is of the utmost importance to keep the parts well lubricated. and unless the supply ot' oil is practically continuous the parts referred to will soon become dry and the proper ruuningof the machine will beimpaired. The proper lubrication of these parts, so that the machine may be run practically continuously without being compelled to stop and oil up in the usual manner, is a matter of importance, and by this invention but slight notice need be paid to the matter of oiling, since an occasional supply of oil to the reservoir is sutiicient to keep the parts properly lubricated. v

In the accompanying drawings, illustrating the invention, in the several figures of which like parts are similarly designated, Figure l 'is atrend elevation of a \Vheeler & 'Wilson high-speed sewing-machine, partly broken away and with the face-plate removed. Fig. 2 is a vertical sectional elevation Substantially in the plane ot' the needle-bar bearing. Fig. 3 is adetail section taken on the line A l ot' Fig. 1; and Fig. 4 is a detail section through the needle-bar link, taken on the line C D ot' Fig. 1.

l is the usual overhanging arm. and 2 is the needle-bar-actuatingshaft, journaled therein. The forward portion of said shaft is journaled within a bushing 3, secured to said arm, and

upon the end of said shaft is a crank-pin car- 5 rier 4, having a crank-pin 5, upon which is journaled the needie-bar-actuating link 6. The lower end of the link 6 engages in the usual manner a pin i',t-ighton the needle-bar 8.

ln the bushing 3 and the arm above it is formed an oil-reservoir 9, out of which iead ducts 10, opening above and upon the shaft 2.

11 is an oil-distributor formed in the shaft 2 by drillinga hole lengthwise therein the required distance and then closing` the end with a plug 12.

13 is an oil-duct formed at the rearward extremity oi' the distributor l l, which for a 'in-iet' period during the rotation of the shaft 2 registers with an oil-duct 1-1 in the bottom of the oil well or reservoir .i, whereby oil passes to the distributor 11.

15 is an oil-distributor formed in the crankpin 5, which communicates with the oil-distributor 11 in the shaft 2 through ducts 16, 1T, and 18, formed, respectively, in the crankpin, its carrier, and the shaft 2. The crankpin 5 is preferably made separable from the c ank-pin. carrier -t and is secured therein in any suitable manner, as by a set-screw 19 within a spot-hole 20 made therefor. 'heu in the revolution of shaft 2 the oil-duct 16 registers with oil-ducts 17 and 18, communication is established between the oil-distrilmters 11 and 15 and oil is fed from the former to the latter.

21 represents ducts in the crank-pin which convey oil from the distributor' 25, formed therein, to the internal bearing-surface of the needle-bar link Any suitable absorbent material-such as felt, wick, &c.22 is packed in the distributers ll 15 and also in the reservoir 9, which serves to more evenly distribute the lubricant and prevent the latter from being thrown ofi' 'and wasted by the operation of the machine.

23 is a lateral otfset formed at the upper part of the. needle-bar link, within which the take-up actuator 21 is pivoted, and 25 isa depending tinger rigid with the take-up lever 26, upon which said actuator works:r

The crankiin socket 27 and holeQS in the l a bushing in said arm eoniinunicatinea wit'h lateral offset. .23 are connected b v oillucts 2S), s that cil nia'v flow therethrough from the crank-pin 5 to the actuator 24, which has an oil-distributcr SiO-and is also packed with absorbent material.

31 represents ducts in theactuator through which oil nia v enter the distributer 30. and? is a duct leading from said distributcr to convey oil therefrom to thedepending linger Q5 of the take-up lever "'3.

33 is a stud upon which the take-up lever is pivoted.

34 represents oil--lioles `made in the upper surface of the socket on the lower end of the needle-bai' link through which oil may enter to lubricate the pin Any overiiow of oil from the crank-pin 5 will find its way dawn the needle-bar link, and at least a portien thereof will enter 'une holes 34C and lubricate pin.

is a cover or cup tapped within the upper end of the reservoir to exclude dust and also to prevent the oil fre-m escaping when the machine is tilted over to inspect the mechanism beneath the bed-plate.

This principle of an oil well or reservoir and one or more oil-distributers comm unicating therewith and having ducts leading' to the parts to be lubricated may be applied very generally to sewing-machines.

1. In a sewing-machine, an overhanging arm, an oil-reservoir arranged in the forward end thereof, a needle-actuating shaft, ducts connecting the said reservoir and shaft. an oildistributer arranged in the end of said shaft, ducts connecting said oil-reservoir with said oil-distrihuter, a needle-bar, a take-up, and connections between said needle-bar, take-up and shaft, in combination with oil-ducts for conveying oil to said connections.

A seWing-inacliine lubricator, comprising an overhanging ariu, an oil-reservoir in the forward end of said arni, a needle-actuating shaft, ducts leading from said reservoir to said shaft, an oilfdistrihuter in the front end of said shaft, ducts leading from the reservoir to said distributer, a crank-pin connected with said shaft and having an oil-distrbuter, and ducts connecting the distributor in the shaft and that in the crank-pin.

3. A sewing-machine lubricator, including an overhanging arni having an oil-reservoir,

`opening ci'inimunisating with said reservoir periodically in e'. er)Y revolution of the shaft.

said reservoir, a shaft turning in `said hushiiig and lubricated from said reservoir, and anoil-distributer in said kshaft having a lateral 4. A sewing-machine. luhrieator, including an overhanging` arm having an oil-reservoir, a bushing in said arin communicating with said reservoir, a shaft turning in said hushing and lubricated from said reservoir, an oildistributer in said shafthaving a lateral opening communicating .with said reservoir` a crankpin carrier on said shaft, a hollow crank-pin on said carrier, ducts con'imunieat# ing bet een said'hollow crank-pin, its carrier and the oil-distributer in said shaft, and a needle-bar-aetuating link on and lubricated from said hollow crank-pin.

.5. A sewing-machine lubricator, including an overhanging arin having an oil-reservoir, a bushing in said arrn communicating with said reservoir, a shaft turning in said bushing and lubricated from said reservoir, an oil-distributer in said shaft having a lateral opening communicating with'said reservoir, a crankpin carrier on saidshaft, a hollow crank-pin on said carrier. d ucts,coinn'iunicating between said hollow crank-pin, its carrier and the oildistributer in said shaft, a needle-bar-actuating link on and lubricated from said hollow crank-pin, and a takeup leveractuated and lubricated b v the needle-bar-actuating link.

6. A sewing-machinelubricator, including an overhanging armv having an oil-reservoir, a bushing in said arm communicating with said reservoir, a shaftturning in said bushing and lubricated from said reservoir, an oildistributer in said shaft having a lateral opening cor -inunicating with said reservoir, a crank-pin carrier on said shaft, a hollow crank-pin on saidcarrier, ducts periodically communicating between said hollow crankpin, its carrier and the oil-distributci' in said shaft, and aneedle-barlactuating link on and lubricated from s aidhollow crank-pin.

In testimony whereof'wehave hereunto set our hands this 27th day of May, A. D. 1903.

VJILBUR F. DIAL'. GEORGE II. DIMONI).

IOO

fitnessesz ISAAC HOLDEN, Tiios. R. HUnDs. 

